Grain-binder



(No Model.) 4 Shets-Shelet .1.

J. s. DAVIS.

GRAIN BINDER.

Nd. 416,577. Patented Dec. 3, 1889.-

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v GRAIN BINDER.

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J. S. DAVIS.

GRAIN BINDER. J

No. 416,577. Patented Dec. 3, 1889.

UNITED STATES I PATENT OFFICE.

JOHN S. DAVIS, OF TOLEDO, OHIO.

GRAIN-BINDER.

SPEGlFIGATION forming part of Letters Patent No. 416,577, dated December 3, 1889.

Application filed August 27, 1888. Serial No. 233,818- (No model.)

To all whom it may concern.-

Be it known that I, JOHN S. DAVIS, a citizen of the United States, residing at Toledo,

in the county of Lucas, State of Ohio,have invented certain new and useful Improvements in Grain-Binders, of which the following is a description.

My invention relates to grain-binders of the class generally known as low down or platform binders, in which the grain is bound by mechanism'located on or substantially on the level of the platform, into the gaveling and binding receptacle of which it is delivered by a suitable platform-carrier and packing mechanism.

It consists of certain improvements in the gavel-compressing and bundle-discharging mechanism, that will be hereinafter fully described.

These improvements are particularly applicable to the special type of machine described and shown in the many patents on grain-binding machines granted to me since 1882, (see particularly Patents No. 27 4,441, March 20, 1883; No. 275,330, April 3,1883; No. 283,866, August 28,1883; No. 311,420, January 27, 1884, and No. 392,721, November 13, 1888;)

but they might by slight modifications obvious to'a skilled mechanic 'be adapted to use in other machines, or some of them used without the others and in differing combinations without departing from the spirit of my invention, as set forth in'the claims at the end of this specification. i

In the accompanying drawings I show my improvements in connection with so much of a grain-binder as is necessary to illustrate their'application thereto.

: tion of the same.

- eration from that shown in Fig. 3 and with portions of gear and supporting-frame omittedto secure greater clearness of illustration. Fig. 5 is a detail View of the main bindergear or master-Wheel and the ejector-shaft with its controlling devices, and Figs. 6 and 7 are detailed views in elevation of the supporting-bracket for the rear end of the knot ter-boX and parting-arm shaft.

The angle-iron finger-beam A of the harvester-platform extends to, a point beneath the binding mechanism and has secured to it in any suitable manner the transverse sill-bars A A which project beyond the finger-beam and have upturned front ends d a Upon these sills, between the finger-beam and their front ends, stands the binder -gear plate B, having feet I) b at its bottom, by which it is bolted to the sill-bars, and braced at its top from the upturned end a of the outer sill-bar by a stiff brace-rod b. This plate affords support to the shafts and other moving parts of the binder mechanism. Au upright post or bar A is bolted to the front upturned portion of the sill-bar A and secured to it at a suitable height above the binding-receptacle is a rearwardly-extending rail-bar A which may be supported in any suitable manner at its end. A similar rail-bar A is attached at its front end to the top of the binder-plate, and, extending back over the binding-receptacle, supports the outer ends of the breast-bars O, which form the top of the receptacle, the inner ends of these bars being bolted to the inner rail-bar A.

The bottom of the binding-receptacle is composed of spring-bars D,securely bolted at their bases or inner ends to the sill-bar A and extending from thence to a point above and outside the outer sill A, as shown in the drawings.

The platform-carrier consists of a series of narrow-belts E, which pass through the spaces between the spring-fingers to the driving roller E, located beneath the binding-receptacle. The grain is deposited by the. carrierbelts upon these fingers within reach of the packing mechanism F, mounted on the con stantly-revolving shaft F, located above the entrance to the binding-receptacle.

packers may be of any suitable kind; but I prefer to use the device illustrated in my Patent No. 283,866, August 28, 1883, or my Patent No. 388,642, August 28, 1888. The shaft E of the apron-driving roller revolves continuously and carries at its front end a pinion G, which drives the binding and packing These mechanisms through the idle-wheels G G mounted upon stud-axles projecting from the front side of the gearplate B. The gearwheel Won. the front end of the packer-shaft is engaged and constantly driven by the wheel G The master-wheel II of the binding mechanism is also engaged by the wheel G", but only at intervals, and then only for a single revolution of the master-wheel, which at the proper time may be tripped into engagement with the wheel G by any suitable means, but preferably by the mechanism shown and described in my pending application for a patent on starting mechanism for grain-binders filed March 3, 1888, Serial No. 266,080. The master-wheel H is keyed onto the front end of a short. shaft- H', journaled in the gear-plate and has rigidly secured at its rear end a cam-plate I. The needle-arm J is secured to the shaft J, mounted in suit able bearings at the front and rear sides of the machine andabove the biiidingreceptacle. A crank-arm J 2 is secured to the front end of this shaft and connected by a pitman j to the wrist-pin 7", projecting from the front face of the masterwheel,the crank-arm being slotted, as at f, to permit the connecting-pin j of the pitman to move therein, as explained in my Patent No. 200,608, granted July 4, 1882. A spiral springj is wound around the shaft J bearing at one end against the frame-bar A and at. the other against a stud-pin on the needle-arm with suiheient force to slightly overbalance the arm and prevent its moving down toward the binding-receptacle until positively drawn by the pitman-connecting pin 7' A combined cut-off and com pressor-arm K is secured on the rear end of a shaft K, mounted in suitable bearings below the binding-receptacle and normally standing below the bottom bars of the receptacle. At the front end of the shaft K is secured a crank-arm 7;, connected by a pitman with a wrist-pin or crank k on the cam-plate I. When suiiicient grain has been pressed by the packers into the,binding-receptacle to actuate the tripping mechanism, the flow of grain is checked by cut-oif fingers on the platform constructed and operating substantially like those illustrated in my before-mentioned patent, No. Ti h H1, and all the grain that has passed said fingers is forced into the receptacle by the rotary packers F before the binderis tripped into actiom In this way all the grain to form a gavel is brought within the point of the combined compressor and cut off arm K, which, upon the starting of the binder, is raised across the throat or entrance to the receptacle, pressing the gavel before it and leaving behind it a clear space for the downward passage of the needle-arm, as shown in Fig.4. \Vhen the binder is at rest, as shown in Fig. 3, the pitman j stands at such an angle to the slot in the crank J 2 that it would hold the needle-arm in its elevated position without assistance; but when the binder starts and the erankpin j moves over toward the position shown in Fig. 4, while the cut-off is being raised to clear a path for the needlearm, the latter, if not otherwise restrained,

would drop more rapidly than desired until,

the back end of the slot overtook the pin j". This would precipitate the point of the needle-arm into the throat before the cut-oil arm had pushed the gavel out of its path and would cause its entanglement. with the grain and the consequent bad results. The tension of the spring 3' however, slightly overbalances the needle-arm and restrains it from moving down faster than it maybe drawn by the pitman j, so that it enters the throat in the rear of the arm K, as shown in Fig. et, entirely below the bundle. Instead of the spring j", the needle-arm might be counterbalanced by a lever and weight mounted on the shaft; but I prefer the spring arrangement shown, as it is simpler and more compact. The combined compressor and cut-off arm, after crossing the throat, continues to advance into the receptacle, urging the grain ahead of it and compressing it into a firm compact bundle against an arm L, which forms the outer wall of the binding-receptacle. This combined retainer and ejector arm is mounted midway of its length on a semi-revolving shaft. L, located below the binding-receptacle, and is duplicated or correspondingly shaped at each side to enable it to properly operate upon the grain in the receptacle at each half-revolution of its shaft.

The forks or branches Z Z of the arm act as the retainers, while the forks Z Z are the ejectors. The forks Z I at one side of the arm constitute one complete arm, while the forks I" at the other side compose its duplicate. This arm might be cast in a solid sheet or web suitably shaped at its edges, as shown; but I prefer to form it with prongs or forks and connect the ends of the opposite arms by bars 1., making it light but strong enough for its duties. I11 thcoperation of forminga bundle this arm L stands in the position shown in Fig. 3, closing the outer side of the receptacle by its fork Z and retaining the grain therein. \Vhen the receptacle is full and the binding mechanism tripped into action, the arm L first stands firm while the combined compressor and cutoff arm and needle are advancing into the receptacle from its opposite sidc. It then advances into the receptacle to further compress the bundle, and finally, when the bundle is bound and the knot is tied,it makes a half-revolution in the direction of the arrow, bringing its fork Z beneath and in the rear of the bundle, ejecting it from the machine. These several move ments and positions are imparted to the arm through the shaft, L, upon the rear end of which it is rigidly attached. This shaft is mounted in suitable hearings on m m", extending from the knotter-box M, which at this point forms part of the supporting-frame. At; its end this shaft carries an arm or double lever N, provided at each of its ends with antifriction rollers n, which stand in the path of a cam-lug N, projecting from the rear face of the master-wheel II. In the rear of this arm there is mounted upon the shaft a double delay-shoe O, which stands in the plane of the cam plate or disk I, and is provided at one side with a pinion P, which stands in the plane of and is engaged at proper intervals by a segmental rack Q, projecting from the rear face ofthe disk I. The delay-cam has two working sides, each formed with two surfaces 0 0 the former resting against the periphery of the disk I to hold the arm L against the grain in the receptacle, while the latter prevents accidental back movement of the arm L beyond a point that insures the proper engagement of thepinion P and segment-gear Q. The relative angle of the two delay-surfaces also provides space that will permit of the required back movement, when the arm L is moved into the receptacle, of the lever N and cam N when aiding to compress the bundle. When the operation of tying the knot is completed, the rack Q engages the pinion P, imparting to it a half-revolution that causes the arm L to eject the bound bundle from the The disk I is cut away at its pereceptacle. riphery and a recess 4. formed, in which the delay-cam is free to revolve during'this ejecting movement.

The pinion is provided with two extra-long teeth 19 p on opposite sides, which normally stand in the path of the rack Q to insure engagement therewith.

The box 'or casing M, which may contain any suitable mechanism for forming the knot, also forms part of the supporting-frame, being bolted at its front end to the binder-gear plate 13 and rigidly supported at' its rear end by a bracket or standard 13' from the outer sill-bar A. The compressor-shaft K is journaled at its rear end in this bracket B.

Having thus described my invention, what I claim as new and useful, and desire to secure by Letters Patent, is

. 1. The combination of the retainer-arm L and its shaft, the lever N and cam N, for

forcing the arm into the receptacle to aid cam-disk I, the pinionP, and geared rack Q,

all arranged as and for the purpose substantially as hereinbefore set forth.

3. The combination of the needle-arm and its shaft, the slotted crank-arm rigidly connected to the shaft, the pitman with its connecting-pin through the slot of the crank, and the restraining-spring on the needle-arm, substantially as and for the purpose hereinbefore set forth.

4. In a grain-binder, the combination of the binding-receptacle, cut-off arms mounted on a rock-shaft, their points crossing the entrance to the receptacle, a crank on said shaft connected by a pitman to the binder-gear,a needle mounted on a rock-shaft, its point also passing across the entrance to the receptacle, a slotted crank on the needle-shaft, and a pitman connecting said crank to the bindergear, its pin playing in the slot of the crank, with a spring to restrain the descent of the needle, substantially as and for the purpose hereinbefore set forth.

In testimony whereof I hereto affix my signature in presence of two witnesses.

JOHN S. DAVIS.

NVitnessesz' HENRY W. 'WELKER, J B. OOFF NBERRY. 

